"Most NBA players as they get older in the league, they got to make changes to their game," said Reggie, who's also Derrick's manager. "Even Michael (Jordan) made changes. Derrick has been in the league five years.
"I just think he has to know when to go really hard, and I don't want to say take a break, but when it's okay to slow the pace down. Instead of driving, dropping it down to (Carlos) Boozer and getting some rest."
The 24-year-old Rose is taking full contact in practice, and conventional wisdom is he'll return at some point after the All-Star break. The Bulls' front office is steadfast that Rose won't return until doctors determine he's 100 percent ready.
"People are trying to compare him to Adrian Peterson," Reggie said of the Minnesota Vikings running back who tore his ACL and returned to capture MVP honors this past season. "He plays on one side of the play, will carry the ball once and then will rest for 30 seconds. It's also different when you play 16 games. With the NBA, you're talking 100-plus games with the season and the playoffs. Even now, we're still looking at 40-60 games."
Peterson tore his ACL on Christmas Eve in 2011 and returned in the 2012 season to rush for 2,097 yards, nine yards short of breaking Eric Dickerson's single-season record. Rose tore his ACL on April 28 and underwent surgery on May 12 with doctors saying his recovery would take 8-12 months.
Reggie believes the mental hurdle of getting back on the court and trusting his body will be key for his brother.
"It's more mental than anything," Reggie said. "Try to get him mentally ready. When he's comfortable, he'll be back. They're not rushing him. People might see him out on the court and see him dunk the ball and say he's ready. It's more than that."
Reggie has been impressed with his younger brother throughout his rehab and as a recent father as well. Rose's son PJ was born in October.
"It makes me stick out my chest a bit to see him not only develop as a player, but as a man himself," Reggie said. "He's taken to (fatherhood) well. I knew it wasn't going to be a problem. We lived in a house where there were kids always around. I've seen him mature. He's just taking time for himself. That's the biggest thing. He's stayed focused and taking time for himself."